1974 duster project

can anyone recommend a good fitting replacement oil pan? Also, I have been looking at pushrods and noticed they come in different sizes (remember total noob here) and i am having a hard time figuring out what set to order. The cam that was put in is a edelbrock performer plus camshaft kit # 2177 (not sure if that makes a difference).. Thanks for any input, been reading up on this for a little while and im getting nowhere.